Tables of specifications provide graphic representations of objectives and segments of instruction or test questions. Examines tables of specifications (use, significance of empty cells, traceability) and their application in instructional design, highlighting constructivism and microworlds, structural communication, computer mediated…

Based on a review of the literature, this article examines the roles of a computer conference moderator in distance education. Highlights include the role of technology in distance education; interactions in learning, including synchronous and asynchronous interaction; reliance on discussion; and pedagogical, social, managerial, and technical…

Discusses successes and failures in the field of instructional technology and suggests methods to design more appropriate systems that would present fewer barriers to adoption. Topics discussed include educational television; videotext; video technology; audiovisual aids; teleconferencing; computer assisted instruction; interactive video; CD-ROM;…